Home / 84,474.40-116,440.66-66,541

Finding the Fourth Proportional to 84,474.40, 116,440.66 and 66,541

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Solution

The fourth proportional to 84,474.40, 116,440.66 and 66,541 is: 91,721.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,474.40 : 116,440.66 = 66,541 : x
  2. Step 2: Convert to fraction form
    84,474.40/116,440.66 = 66,541/x
  3. Step 3: Cross multiply
    84,474.40x = 116,440.66 × 66,541
  4. Step 4: Simplify right side
    84,474.40x = 7,748,077,957.06
  5. Step 5: Solve for x
    x = 7,748,077,957.06/84,474.40
  6. Step 6: Final answer
    x = 91,721.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.